<?php

include_once APPLICATION_DIR . "/admin/library/libraries/Pagination.php";

class Pager extends CI_Pagination
{
    var $link_extracode = 'rel="noindex"';
    
    function __construct($base_url) {
        parent::__construct();
        
        $this->base_url = $base_url;
        $this->total_rows = 100;
        $this->per_page = 1; 
        $this->num_links = '2';
        $this->uri_segment = '2';
        $this->page_query_string = true;
        $this->use_page_numbers = true;
        $this->query_string_segment = 'page';
        $this->full_tag_open = '<p>';
        $this->full_tag_close = '</p>';
        $this->first_link = 'First';
        $this->first_tag_open = '&nbsp;';
        $this->first_tag_close = '&nbsp;';
        $this->last_link = 'Last';
        $this->last_tag_open = '&nbsp;';
        $this->last_tag_close = '&nbsp;';
        $this->next_link = '&gt;';
        $this->next_tag_open = '&nbsp;';
        $this->next_tag_close = '&nbsp;';
        $this->prev_link = '&lt;';
        $this->prev_tag_open = '&nbsp;';
        $this->prev_tag_close = '&nbsp;';
        $this->cur_tag_open = '<b>';
        $this->cur_tag_close = '</b>';
        $this->num_tag_open = '&nbsp;';
        $this->num_tag_close = '&nbsp;';
        //$this->display_pages = FALSE; 
        
    }
    
	function create_links()
    {
        // If our item count or per-page total is zero there is no need to continue.
        if ($this->total_rows == 0 OR $this->per_page == 0)
        {
          return '';
        }

        // Calculate the total number of pages
        $num_pages = ceil($this->total_rows / $this->per_page);

        // Is there only one page? Hm... nothing more to do here then.
        if ($num_pages == 1)
        {
          return '';
        }

        // Determine the current page number.
        $CI =& get_instance();

        if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE)
        {
          if ($CI->input->get($this->query_string_segment) != 0)
          {
            $this->cur_page = $CI->input->get($this->query_string_segment);

            // Prep the current page - no funny business!
            $this->cur_page = (int) $this->cur_page;
          }
        }
        else
        {
          if ($CI->uri->segment($this->uri_segment) != 0)
          {
            $this->cur_page = $CI->uri->segment($this->uri_segment);

            // Prep the current page - no funny business!
            $this->cur_page = (int) $this->cur_page;
          }
        }

        $this->num_links = (int)$this->num_links;

        if ($this->num_links < 1)
        {
          show_error('Your number of links must be a positive number.');
        }

        if ( ! is_numeric($this->cur_page) || $this->cur_page < 1) // EDITED
        {
          $this->cur_page = 1; // EDITED
        }

        // Is the page number beyond the result range?
        // If so we show the last page
        if (($this->cur_page * $this->per_page) > $this->total_rows) // EDITED
        {
          $this->cur_page = ($num_pages - 1); // EDITED
        }

        $uri_page_number = $this->cur_page;
        //$this->cur_page = floor(($this->cur_page/$this->per_page) + 1); // EDITED

        // Calculate the start and end numbers. These determine
        // which number to start and end the digit links with
        $start = (($this->cur_page - $this->num_links) > 0) ? $this->cur_page - ($this->num_links - 1) : 1;
        $end   = (($this->cur_page + $this->num_links) < $num_pages) ? $this->cur_page + $this->num_links : $num_pages;

        // Is pagination being used over GET or POST?  If get, add a per_page query
        // string. If post, add a trailing slash to the base URL if needed
        if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE)
        {
            if (stripos("?", rtrim($this->base_url)) !== false) {
                $this->base_url = rtrim($this->base_url).'&amp;'.$this->query_string_segment.'=';
            } else {
                $this->base_url = rtrim($this->base_url).'?'.$this->query_string_segment.'=';
            }
        }
        else
        {
          $this->base_url = rtrim($this->base_url, '/') .'/';
        }

        // And here we go...
        $output = '';

        // Render the "First" link
        if  ($this->first_link !== FALSE AND $this->cur_page > ($this->num_links)) // EDITED
        {
          $first_url = ($this->first_url == '') ? $this->base_url : $this->first_url;
          $output .= $this->first_tag_open.'<a '.$this->link_extracode.' '.$this->anchor_class.'href="'.$first_url.'">'.$this->first_link.'</a>'.$this->first_tag_close;
        }

        // Render the "previous" link
        if  ($this->prev_link !== FALSE AND $this->cur_page != 1)
        {
          $i = $this->cur_page-1; // EDITED

          if ($i == 1 && $this->first_url != '') // EDITED
          {
            $output .= $this->prev_tag_open.'<a '.$this->link_extracode.' '.$this->anchor_class.'href="'.$this->first_url.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
          }
          else
          {
            $i = ($i == 1) ? '' : $this->prefix.$i.$this->suffix; // EDITED
            $output .= $this->prev_tag_open.'<a '.$this->link_extracode.' '.$this->anchor_class.'href="'.$this->base_url.$i.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
          }

        }

        // Render the pages
        if ($this->display_pages !== FALSE)
        {
          // Write the digit links
          for ($loop = $start; $loop <= $end; $loop++)
          {
            $i = $loop; // EDITED

            if ($i >= 0)
            {
              if ($this->cur_page == $loop)
              {
                $output .= $this->cur_tag_open.$loop.$this->cur_tag_close; // Current page
              }
              else
              {
                $n = ($i == 0) ? '' : $i;

                if ($n == '' && $this->first_url != '')
                {
                  $output .= $this->num_tag_open.'<a '.$this->link_extracode.' '.$this->anchor_class.'href="'.$this->first_url.'">'.$loop.'</a>'.$this->num_tag_close;
                }
                else
                {
                  $n = ($n == '') ? '' : $this->prefix.$n.$this->suffix;

                  $output .= $this->num_tag_open.'<a '.$this->link_extracode.' '.$this->anchor_class.'href="'.$this->base_url.$n.'">'.$loop.'</a>'.$this->num_tag_close;
                }
              }
            }
          }
        }

        // Render the "next" link
        if ($this->next_link !== FALSE AND $this->cur_page < $num_pages)
        {
          $output .= $this->next_tag_open.'<a '.$this->link_extracode.' '.$this->anchor_class.'href="'.$this->base_url.$this->prefix.($this->cur_page+1).$this->suffix.'">'.$this->next_link.'</a>'.$this->next_tag_close; // EDITED
        }

        // Render the "Last" link
        if ($this->last_link !== FALSE AND ($this->cur_page + $this->num_links) < $num_pages)
        {
          $i = $num_pages; // EDITED
          $output .= $this->last_tag_open.'<a '.$this->link_extracode.' '.$this->anchor_class.'href="'.$this->base_url.$this->prefix.$i.$this->suffix.'">'.$this->last_link.'</a>'.$this->last_tag_close;
        }

        // Kill double slashes.  Note: Sometimes we can end up with a double slash
        // in the penultimate link so we'll kill all double slashes.
        $output = preg_replace("#([^:])//+#", "\\1/", $output);

        // Add the wrapper HTML if exists
        $output = $this->full_tag_open.$output.$this->full_tag_close;

        return '<div class="pagination">'.$output.'</div>';
    }

	
}
